"Approximately 93 percent of beginning public school teachers who were earning less than $40,000 in 2008–09 remained teachers in 2009–10, and about 96 percent of beginning public school teachers who were earning $40,000 or more in 2008–09 remained teachers in 2009–10 (table 3). "

Hmmm, is 96% the product of 3.7 and 93%? Let me get my calculator.....(tap, tap, tap). Nope! That would imply that 355% of better-paid teachers stay on the job.
There IS about a 3 percentage point difference in the share of low vs. high-earning teachers staying in teaching: 7% of those earning <$40K leave, compared to 4% of those earning >$40K. That's worth writing about!